Multi-objective optimization of a plate heat exchanger thermal energy storage with phase change material
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
2024-06-01
Major/Subject
Mcode
Degree programme
Language
en
Pages
12
Series
Journal of Energy Storage, Volume 89
Abstract
The plate heat exchanger thermal energy storage system is recognized as a highly efficient form of latent heat thermal energy storage. However, existing studies show that the efficiency and performance of these thermal energy storage systems are significantly affected by the design variables, indicating the need of optimization studies. This investigation thus conducts a response surface modeling analysis based on validated computational fluid dynamics simulations. Four design variables of the system are identified, and through response surface modeling the values of five responses such as average power and average effectiveness are predicted within the defined range of the design variables. A multi-objective optimization model then determines the optimal configuration of design variables for all responses, based on the response surface modeling and validated simulations. The results indicate that the optimal design has 21.4 % higher effectiveness than the normal design. The system also achieves maximum performance by employing 5 mm of the phase change material section thickness considering all the efficiency parameters. Moreover, charging the system over 10 °C above the PCM's melting temperature significantly decreases efficiency while providing minimal enhancement to power.Description
Publisher Copyright: © 2024 The Authors
Keywords
CFD, Heat exchanger, MOOP, Optimization, PCM, RSM, Thermal energy storage
Other note
Citation
Taghavi, M, Ferrantelli, A & Joronen, T 2024, ' Multi-objective optimization of a plate heat exchanger thermal energy storage with phase change material ', Journal of Energy Storage, vol. 89, 111645 . https://doi.org/10.1016/j.est.2024.111645